The table shows the total cost of purchasing x same- priced items and a catalog.
Total Cost
Number of Items Total Cost
(x)
(y)
1
$10
2
$14
3
$18
4.
$22
What is the initial value and what does it represent?
O $4, the cost per item
O $4, the cost of the catalog
$6, the cost per item
O $6, the cost of the catalog

$6.42

step-by-step explanation:

one set of data has more variation than the other. hope this !

< xcy ≅ < xby

step-by-step explanation:

in δcax and δbax,

so, δcax ≅ δbax (side-angle-side or sas)

since δcax ≅ δbax, we can conclude < acx ≅ < abx

in δacy and δaby,

so, δacy ≅ δaby (side-angle-side or sas)

since δacy ≅ δaby, we can conclude < acy ≅ < aby

now,

< acy ≅ < aby

=> < acx + < xcy ≅ < abx + < xby

=> < acx + < xcy ≅ < acx + < xby   (since < acx ≅ < abx already proved above)

subtracting < acx from both sides, we get

< acx + < xcy -< acx ≅ < acx + < xby -< acx

cancelling out < acx and -< acx from both sides, we get

< xcy ≅ < xby (proved)